Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Sean Robert McMahon, MD

Individual provider Internal Medicine Physician · NPI 1295050169

Dr. Sean Robert McMahon, MD is a Cardiovascular Disease (Cardiology) in Hartford, Connecticut. Qualified in 2010, 16 years ago. Practices with Hartford Healthcare Medical Group Specialists PLLC, a 1,537-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and Vermont.

Years since qualifying
16
Licensed in
CT, VT
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

80 Seymour Street Hartford Hospital Cardiology
Hartford, CT 06102-5037
Phone: (860) 972-9047
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 111 Colchester Ave, Burlington, VT 05401-1473 — (802) 847-2700

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 056654 (CT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 042.0012683 (VT)

Record details

NPI number1295050169
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 2, 2010
Last updated in NPPESOctober 12, 2017

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Hartford Healthcare Medical Group Specialists Pllc — 1537 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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